Sql - Handling Constraint SqlException?
Feb 17, 2010
Suppose I have a user table that creates strong relationships (Enforce Foreign Key Constraint) with many additional tables. Such orders table ..If we try to delete a user with some orders then SqlException will arise.. How can I catch this exception and treat it properly?Is this strategy at all?1) first try the delete action if an exception Occur handel it?2) Or maybe before the delete action using code adapted to ensure that offspring records throughout the database and alert according to .. This piece of work So how to do it?
--Edit:The goal is not to delete the records from the db! the goal is to inform the user that this record has referencing records. do i need to let sql to execute the delete command and try to catch SqlException? And if so, how to detect that is REFERENCE constraint SqlException?Or - should I need to write some code that will detect if there are referencing records before the delete command. The last approach give me more but its a lot of pain to implement this kind of verification to each entity..
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[Code]....
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Mar 22, 2010
[Code]....
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cmd.Connection = con;
con.Open();
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message - Incorrect syntax near "&"
Line number 1
Errorcode -2146232060
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[code]....
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[code]....
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[Code]....
[Code]....
ERROR:
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[Code]....
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[Code]....
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